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Each time a skill is published, it is assigned a version number. A skill can have multiple versions (this happens when a skill is edited and published multiple times). Skill versions allow you to have multiple variants of one skill instead of creating new skills. Before publishing a new version of a skill, check its extraction statistics. If the new version performs worse than the previous version, you may prefer not to publish the skill and use its previous version instead. To do this, go to the start page, on the Skill Catalog tab, select the skill, and click the Discard icon next to the description of the skill. If you have published a new version of the skill and are not satisfied with its performance, you can edit the skill and publish it again, or delete the new version of the skill. You can find the version number of a skill in the Version column next to the name of the skill. Clicking the version number opens a dialog box that contains information about the existing versions of the skill. The version number of a skill is automatically incremented every time the skill is published. By default, the last three versions of the skill are always stored. This means that if there are more than three versions of a skill at any given time, all versions not being used in other skills and transactions are automatically deleted. You can disable this option by turning off the Keep only 3 latest versions toggle. When this option is disabled, no skill versions are deleted automatically.

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Editing and Copying Skill Versions

When editing a skill, its editable version appears in the Skill Versions dialog box as shown below. A skill can only have one editable version at any one time. By default, the latest version of the skill is selected for editing. You can also manually edit any other version of a skill. To do this, click the more icon next to the version number and select:
  • Edit skill version to edit the selected skill version.
  • Duplicate skill to create new version to create a new skill and edit it instead of creating a new version of the current skill.
  • Create and Edit Derived Skill to create a derived skill of the selected version.
When copying a skill, its latest version is copied by default. To copy a different version of a skill, click the copy skill icon or Duplicate skill to create new version next to the version number. A derived skill can be updated if a new version of its base skill becomes available.

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Importing and Exporting Skill Versions

When importing a skill that already exists in a tenant, you can either import it as a new skill or create a new version of the existing skill. The new version of the skill will have a version number that is incremented from the previous version (the numbering takes into account all versions of a skill to ever exist). A skill from another tenant is always imported with its own version number. When exporting a skill, its latest version is exported by default. To export a different version of a skill, you must first duplicate the required version (by clicking either the copy skill icon or Duplicate skill to create new version next to the version number) and export it.

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Deleting Skill Versions

You can delete any version of a skill that is not used by other skills or transactions. To do this, click the delete icon next to the version number. Deleted versions of skills cannot be restored. The numbering of all deleted skill versions will remain stored in the system’s memory, so that no new skill version will ever have a version number identical to that of a deleted skill. For example, if version 3 of a skill, which is its latest version, is deleted, the next version of that skill would be numbered as version 4. When you delete a skill, all its versions are deleted.